US4178839A - Carton erecting apparatus - Google Patents
Carton erecting apparatus Download PDFInfo
- Publication number
- US4178839A US4178839A US05/834,166 US83416677A US4178839A US 4178839 A US4178839 A US 4178839A US 83416677 A US83416677 A US 83416677A US 4178839 A US4178839 A US 4178839A
- Authority
- US
- United States
- Prior art keywords
- blank
- carton
- cup
- supports
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/76—Opening and distending flattened articles
- B31B50/80—Pneumatically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/002—Prebreaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/02—Feeding or positioning sheets, blanks or webs
- B31B50/04—Feeding sheets or blanks
- B31B50/06—Feeding sheets or blanks from stacks
- B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/76—Opening and distending flattened articles
- B31B50/78—Mechanically
Definitions
- This invention relates to a method and apparatus for erecting tubular cartons, and more particularly, the invention is an improvement in carton erecting of the type disclosed in U.S. Pat. No. 3,476,024.
- a flat folded tubular carton blank is fed from a magazine in flat folded condition and conveyed to an erecting station.
- the carton blank has top and bottom panels interconnected by leading and trailing side panels, the leading panel facing upwardly and the trailing panel facing downwardly.
- the axis of the tubular carton is transverse to the direction of movement from the magazine through the erecting station to the transport conveyor.
- the carton blank is held stationary momentarily.
- a knife is projected transversely into each end of the carton where it partially opens the carton (about 1/4").
- Each knife has an edge which lies adjacent to the crease interconnecting the trailing side panel with the bottom panel.
- a cam-operated finger is caused to move upwardly into engagement with the trailing side panel to start to swing the trailing side panel toward a vertical position.
- a trailing pair of lugs in the transport conveyor swings up behind the carton blank and completes the raising of the trailing side panel to a vertical orientation.
- the trailing side panel swings to vertical, it effects the erection of the carton to a rectangular form.
- U.S. Pat. No. 3,476,024 performs the erecting operation satisfactorily but has two disadvantages which the present invention overcomes.
- the erecting apparatus requires a complex cam-operated erecting finger and further requires a complex mechanism for the knives which must be projected into the carton and then out of the carton before the transport lugs carry the carton away from the erecting station.
- the second disadvantage is related to the first in that the requirement of projecting knives into and out of the carton necessarily imposes a limiting factor on the number of cartons per minute which can be cycled through the machine.
- An objective of the present invention has been to provide an improved carton erecting apparatus which is considerably less complex than those employed heretofore.
- Another objective of the invention has been to provide means preventing elbowing during the opening of a carton.
- "Elbowing” refers to the tendency of the carton blank to stay closed when an attempt to open is made by swinging a side wall upwardly with respect to a front or back wall to begin the opening of a carton. With the carton remaining closed all walls stay together and the blank bows in an L-shape.
- the erecting operation is significantly improved by substituting for the reciprocating knives the combination of at least one suction cup and a supporting surface on each side of the suction cup to effect the partial opening of the carton. More specifically, underlying the carton blank at the location where the carton blank is momentarily stopped for the erecting operation, a transverse breaker bar is engageable by the underside of the carton. A plurality of transversely spaced suction cups, which are stationary, are disposed alongside the breaker bar. At the opposite side of the cups from the breaker bar is another supporting surface, which could be another breaker bar, or as shown in the first embodiment, a conveyor belt passing over a roll. The two supporting surfaces are spaced well inboard of the leading and trailing edges of the blank.
- FIG. 1 is a perspective view of the carton erecting apparatus constructed in accordance with the practice of this invention
- FIG. 2 is a diagrammatic cross-sectional view taken generally along lines 2--2 of FIG. 1;
- FIG. 3 is a diagrammatic perspective of a portion of the apparatus illustrating a flap engaging finger and a flap plow;
- FIG. 4 is a cross-sectional view taken generally along lines 4--4 of FIG. 2;
- FIG. 5 is a cross-sectional view taken along lines 5--5 of FIG. 2;
- FIG. 6 is a diagrammatic view of an alternative embodiment.
- FIG. 1 A flat folded carton blank which is to be erected by the apparatus of the present invention is illustrated in FIG. 1 as an erected carton.
- the carton 9 has a first surface formed by a top panel 10 and a leading upwardly facing side panel 12; and a second surface formed by a bottom panel 11 and a trailing downwardly facing side panel 13 said panels being joined together on transverse fold lines.
- a flap 14 is hinged to each end of the top panel
- a flap 15 is hinged to each end of the bottom panel
- a flap 16 is hinged to each end of the leading panel
- a flap 17 is hinged to each end of the trailing side panel.
- the erecting apparatus of the invention includes a frame 20 carrying an upstream conveyor section 21 and a downstream conveyor section 22.
- Each conveyor section is formed in part by two continuously running, transversely spaced, endless belts 23.
- the belts have an upper reach 23a which is interrupted at the erecting station, indicated generally at 19, by passing around rolls 23b, under rolls 23c and upwardly around rolls 23d thereby dividing the belts into upstream and downstream sections.
- the upstream section which carries the blanks in a flat folded condition includes overlying rollers 24 which press the carton blank against at least one of the endless belts 23 to provide the frictional engagement of the blank with the endless belt to move it into the erecting section.
- a pair of flap-engaging fingers 25 mounted on a rotatable shaft 26.
- the fingers 25 are operable to engage leading flaps 16, forcing them against flaps 15 on the bottom panel, thereby creating a slight spacing between top flaps 14 and bottom flaps 15.
- Some cartons are constructed with cutouts in flap 16 to permit direct engagement of flap 15 by the fingers 25 since it is necessary only to depress flap 15.
- a stationary plow 30 on each side of the apparatus passes into that slight spacing, over the flaps 15 and 16 and underneath the flaps 14, as the carton is moved into the erecting section (FIG. 3).
- a pair of adjustable stops 31 are mounted on the frame and project upwardly slightly in a position to engage the trailing flaps 17 at each side of the carton, thereby to precisely position the carton in the erecting station.
- the stops 31 are longitudinally as well as transversely adjustable in order to accommodate different carton sizes and to assure the positioning of the crease 33 between the bottom panel and trailing side panel of a carton precisely on the corner of a breaker bar 34 which is fixedly mounted to the frame and extends transversely across the frame at the erecting section.
- stops 31 may alternately be positioned to engage other flaps of the carton construction.
- a plurality of suction cups 35 which are stationary and which have upwardly flaring lips 36.
- the cups are spaced apart in a transverse direction and present a single cup width in a longitudinal direction.
- the lips 36 are very flexible and flex downwardly when they are in engagement with the underlying (second) surface of a carton blank and have suction applied to them. That downward flexing causes the underside of the carton to be drawn downwardly against the supports on either side provided by breaker bar 34 and belts 23 at rolls 23d to effect partial opening of the carton, as will be explained in more detail below.
- a second transverse breaker bar similar to bar 34 may be employed at the downstream side of the suction cups to assist in the partial opening of short (machine direction) carton blanks.
- Each opening element 40 Overlying the upstream conveyor section 21 is a pair of L-shaped opening elements 40 transversely spaced on a rotatable shaft 41.
- Each opening element 40 has a finger 42 adapted to engage the trailing side panel 13 to swing it upwardly.
- the finger 42 is mounted on a threaded rod 43 which is secured to a bracket 44 fixed on the shaft 41.
- a pair of nuts 45 permits the radial extension of the rod 43 and with it the finger 42 to be adjusted with respect to the shaft 41.
- the brackets 44 are axially positionable with respect to the shaft 41 to accommodate them to varying size cartons.
- overbreak elements 50 Overlying the downstream conveyor section 22 is a pair of overbreak elements 50 very similar to the opening elements 40.
- the overbreak elements are mounted on a rotatable shaft 51, each consisting of a finger 52 mounted on a rod 53 which is adjustably mounted on a bracket 54 fixed to the shaft 51.
- the rod 53 is threaded and is adjustably secured to the bracket by a pair of nuts 55.
- the transverse spacing of the overbreak elements 50 is closer than the spacing of the opening elements 40 so that they can pass each other without interference during the operation of the apparatus.
- a guide rail 60 which is spaced above the upper run 23a of the belt 23 by a distance slightly less than the height of the side panels.
- the carton when overbroken and thrust under the rail 60, will tend to spring up against the rail 60.
- the "fight" of the carton that is, its resilience, tends to bias the bottom panel 11 against the upper run 23a permitting the carton to be conveyed away from the erecting station and into transport lugs of a conveyor (not shown).
- extensions 30a of the plows 30 may overlie the flaps 15 to aid in holding the carton against the upper run 23a (FIG. 5).
- Means are, of course, provided for driving the conveyor belts 23, for rotating the shafts 26, 41 and 51, respectively, and for applying a vacuum to the suction cups all in timed relation. These means are shown only diagrammatically for the sake of clarity.
- flat folded blanks having an upwardly-facing leading side panel 12 and a downwardly-facing trailing side panel 13 are fed from a magazine (not shown) to the upstream conveyor section 21.
- the flap-engaging fingers 25 briefly engage the leading flaps 16 to press them downwardly, and along with it flaps 15 on the bottom panel 11 below the surface of a stationary plow 30.
- the trailing flaps 17 ride above the plow and into engagement with the stops 31. Upon engagement with the stops 31, the blank is momentarily held in the proper position for erecting.
- the rotatable opening element 40 swings up under the trailing side panel 13 to swing it to a substantially vertical position through an angle of approximately 90°.
- the overbreak element 50 rotates into engagement with the trailing side panel, forcing it in a downstream direction through another 90° thereby overbreaking the carton blank through a total of 180°.
- the trailing flap may be swung through substantially less than or greater than 90°, all of which would depend on a specific carton design.
- FIGS. 1-5 a mechanism for opening the carton blank has been shown as consisting of a plurality of suction cups 35 and supports on either side of the suction cup consisting of breaker bar 34 and belts 23 passing over rolls 23d. That concept for partially opening carton blanks to avoid the problem of elbowing is useful in other environments. A sample of one such environment is illustrated in FIG. 6.
- each blank has a top panel 10 and a bottom panel 11, a lead side panel 12 and trailing side panel 13 all interconnected by creases 71.
- the designation top and bottom panels and the like are used even though the blanks are vertically oriented. These terms are used to describe the carton as it is ultimately opened and carried in the transport lugs of a transport conveyor.
- the bottom panel 11 and trailing side panel 13 form a first surface and the top panel 10 and leading side panel 12 form a second surface when the blank is flat.
- the upper edges of the blanks are restrained by the bar 73 and the lower edges are restrained by a bar 74, each bar overlying a fraction of an inch of the extremity or edge of each blank.
- a horizontal breaker plate 75 projects forwardly from the bar 74 to assist in the erecting of the carton as will be described.
- a channel shaped carrier 76 is supported on a kinematic linkage shown diagrammatically at 77 to swing the carrier 76 generally in the path illustrated by the line 78.
- the carrier 76 has a wall 80 which supports two side bars 81 and 82 to provide the channel configuration.
- a bellows shaped vacuum cup 85 is mounted on the wall 80 of the carrier 76.
- One cup 85 is illustrated but a plurality may be employed depending on the length of the blank to be opened.
- the bellows vacuum cup has outer lips 86 which are normally positioned at approximately the plane defined by the edges 87 of the side walls 81, 82 of carrier 76.
- the flexible bellows retracts into the carrier with the lips 86 of the cup 85 pulling the wall of the blank which they engage slightly into the space between the walls 81, 82.
- the action imparts a slight bow to the second surface of the blank which faces the carrier and effects a partial opening of the carton blank. Even if there is a slight tendency of the blank to elbow when the vacuum cup is applied, the bow imparted to the wall of the blank prevents the elbowed relationship from remaining in the unerected blanks so the further forces on the blank particularly including the forces on the side panels will cause the blank to erect properly.
- the transport conveyor 90 Disposed below the magazine is the transport conveyor 90 which carries leading transport lugs 91 and trailing transport lugs 92.
- the transport conveyor is shown passing around sprocket 93 at the upstream end of the transport conveyor and the leading and trailing transport lugs are spaced by the width of the carton in a known manner.
- the kinematic linkage 77 of the carrier 76 and the transport conveyor are driven together and thus timed to effect the opening of a carton blank and placement of the carton blank between the transport lugs as the leading and trailing transport lugs are in a diverging orientation arising out of the passage around the arc of the sprocket 93.
- the blank As the carrier begins its excursion from the magazine to the transport conveyor, the blank, and particularly the leading side panel 12, is caused to brush past the horizontal bar 75 thereby camming the blank to an open or erected attitude.
- the partial opening of the carrier blanks through the bowing concept has been shown in two different structures. It should be understood the variations from this are included within the scope of the present invention.
- the principal elements involved in the present invention include two support members located well inboard of the edges of the blank and a vacuum cup between the supporting members which grips a wall of the flat folded carton blank and draws it toward the supports to effect the bowing.
- the two supporting elements might engage a blank on one panel only or the two supporting elements might respectively engage two panels with the crease joining the two panels located between the supporting elements.
- the supporting elements should, however, be fairly closely spaced from each other, the distance between them being for example, less than one-half the width of the blank which they engage and they should be located well inboard of the parallel edges of the blank.
Landscapes
- Making Paper Articles (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Abstract
Description
Claims (8)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/834,166 US4178839A (en) | 1976-09-16 | 1977-09-19 | Carton erecting apparatus |
CA309,586A CA1086120A (en) | 1977-09-19 | 1978-08-17 | Carton erecting apparatus |
GB7837132A GB2004832B (en) | 1977-09-19 | 1978-09-18 | Carton erecting apparatus |
IT27800/78A IT1099323B (en) | 1977-09-19 | 1978-09-18 | PROCEDURE AND EQUIPMENT, PARTICULARLY FOR THE ERECTION OF TUBULAR BOXES |
DE19782840518 DE2840518A1 (en) | 1977-09-19 | 1978-09-18 | DEVICE FOR ERECTING TUBULAR CARDBOARD CUTTINGS |
JP11444578A JPS5454793A (en) | 1977-09-19 | 1978-09-18 | Mechanism for partially opening fiberboard box folded flatly |
FR7826688A FR2403268A2 (en) | 1976-09-16 | 1978-09-18 | PROCESS AND MACHINE FOR OPENING TUBULAR BLANKETS OF CARDBOARD BOXES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/723,992 US4057008A (en) | 1976-09-16 | 1976-09-16 | Carton erecting apparatus |
US05/834,166 US4178839A (en) | 1976-09-16 | 1977-09-19 | Carton erecting apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/723,992 Continuation-In-Part US4057008A (en) | 1976-09-16 | 1976-09-16 | Carton erecting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US4178839A true US4178839A (en) | 1979-12-18 |
Family
ID=27110904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/834,166 Expired - Lifetime US4178839A (en) | 1976-09-16 | 1977-09-19 | Carton erecting apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US4178839A (en) |
FR (1) | FR2403268A2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0100143A1 (en) * | 1982-07-06 | 1984-02-08 | R. A. JONES & CO. INC. | A magazine for flat cartons, prefolded leaflets and the like |
US4596545A (en) * | 1982-07-06 | 1986-06-24 | R. A. Jones & Co. Inc. | Orbital feeder |
US4601691A (en) * | 1984-11-19 | 1986-07-22 | R. A. Jones & Co. Inc. | Carton feeder |
US6651800B2 (en) | 2001-02-12 | 2003-11-25 | Langen Packaging Inc. | Object orientation system |
EP2138983A2 (en) | 2008-06-26 | 2009-12-30 | Steven Michael Faes | Article storage and retrieval apparatus and vending machine |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2890560A (en) * | 1957-10-22 | 1959-06-16 | Ralph W Johns | Case flap opener |
US3104598A (en) * | 1960-07-21 | 1963-09-24 | Lever Brothers Ltd | Apparatus for preforming and prefolding cartons |
US3476023A (en) * | 1968-10-24 | 1969-11-04 | Herrick Waterman | Carton handling machine |
US3476024A (en) * | 1967-08-24 | 1969-11-04 | Jones & Co Inc R A | Apparatus for erecting cartons |
US3534667A (en) * | 1968-10-08 | 1970-10-20 | Kliklok Corp | Device for expanding and reverse-collapsing tubular folding box blanks |
US3888164A (en) * | 1972-08-24 | 1975-06-10 | Seal Spout Europ S P A | Cardboard box conveyor |
US3956576A (en) * | 1974-12-12 | 1976-05-11 | Eltra Corporation | Insulator for battery connections |
US4011799A (en) * | 1975-11-10 | 1977-03-15 | Container Corporation Of America | Carton erecting apparatus |
US4034658A (en) * | 1975-10-28 | 1977-07-12 | Olinkraft, Inc. | Tray feeder system |
-
1977
- 1977-09-19 US US05/834,166 patent/US4178839A/en not_active Expired - Lifetime
-
1978
- 1978-09-18 FR FR7826688A patent/FR2403268A2/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2890560A (en) * | 1957-10-22 | 1959-06-16 | Ralph W Johns | Case flap opener |
US3104598A (en) * | 1960-07-21 | 1963-09-24 | Lever Brothers Ltd | Apparatus for preforming and prefolding cartons |
US3476024A (en) * | 1967-08-24 | 1969-11-04 | Jones & Co Inc R A | Apparatus for erecting cartons |
US3534667A (en) * | 1968-10-08 | 1970-10-20 | Kliklok Corp | Device for expanding and reverse-collapsing tubular folding box blanks |
US3476023A (en) * | 1968-10-24 | 1969-11-04 | Herrick Waterman | Carton handling machine |
US3888164A (en) * | 1972-08-24 | 1975-06-10 | Seal Spout Europ S P A | Cardboard box conveyor |
US3956576A (en) * | 1974-12-12 | 1976-05-11 | Eltra Corporation | Insulator for battery connections |
US4034658A (en) * | 1975-10-28 | 1977-07-12 | Olinkraft, Inc. | Tray feeder system |
US4011799A (en) * | 1975-11-10 | 1977-03-15 | Container Corporation Of America | Carton erecting apparatus |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0100143A1 (en) * | 1982-07-06 | 1984-02-08 | R. A. JONES & CO. INC. | A magazine for flat cartons, prefolded leaflets and the like |
US4518301A (en) * | 1982-07-06 | 1985-05-21 | R. A. Jones & Co. Inc. | Orbital feeder |
US4596545A (en) * | 1982-07-06 | 1986-06-24 | R. A. Jones & Co. Inc. | Orbital feeder |
US4601691A (en) * | 1984-11-19 | 1986-07-22 | R. A. Jones & Co. Inc. | Carton feeder |
US6651800B2 (en) | 2001-02-12 | 2003-11-25 | Langen Packaging Inc. | Object orientation system |
EP2138983A2 (en) | 2008-06-26 | 2009-12-30 | Steven Michael Faes | Article storage and retrieval apparatus and vending machine |
Also Published As
Publication number | Publication date |
---|---|
FR2403268A2 (en) | 1979-04-13 |
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Legal Events
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